iwlwifi: make tx_cmd_pool kmem cache global
[pandora-kernel.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
index 863c27e..7927e3e 100644 (file)
@@ -327,14 +327,13 @@ static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
 
        /* Make sure device is powered up for SRAM reads */
        spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags);
-       if (iwl_grab_nic_access(trans(priv))) {
+       if (unlikely(!iwl_grab_nic_access(trans(priv)))) {
                spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
                return;
        }
 
        /* Set starting address; reads will auto-increment */
        iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr);
-       rmb();
 
        /*
         * Refuse to read more than would have fit into the log from
@@ -353,11 +352,12 @@ static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
                ev = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
                time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
                if (mode == 0) {
-                       trace_iwlwifi_dev_ucode_cont_event(priv, 0, time, ev);
+                       trace_iwlwifi_dev_ucode_cont_event(
+                                       trans(priv)->dev, 0, time, ev);
                } else {
                        data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
-                       trace_iwlwifi_dev_ucode_cont_event(priv, time,
-                                                          data, ev);
+                       trace_iwlwifi_dev_ucode_cont_event(
+                                       trans(priv)->dev, time, data, ev);
                }
        }
        /* Allow device to power down */
@@ -422,7 +422,7 @@ static void iwl_continuous_event_trace(struct iwl_priv *priv)
                else
                        priv->event_log.wraps_once_count++;
 
-               trace_iwlwifi_dev_ucode_wrap_event(priv,
+               trace_iwlwifi_dev_ucode_wrap_event(trans(priv)->dev,
                                num_wraps - priv->event_log.num_wraps,
                                next_entry, priv->event_log.next_entry);
 
@@ -975,8 +975,8 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
 
        iwl_setup_scan_deferred_work(priv);
 
-       if (cfg(priv)->lib->bt_setup_deferred_work)
-               cfg(priv)->lib->bt_setup_deferred_work(priv);
+       if (cfg(priv)->bt_params)
+               iwlagn_bt_setup_deferred_work(priv);
 
        init_timer(&priv->statistics_periodic);
        priv->statistics_periodic.data = (unsigned long)priv;
@@ -993,8 +993,8 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
 
 void iwl_cancel_deferred_work(struct iwl_priv *priv)
 {
-       if (cfg(priv)->lib->cancel_deferred_work)
-               cfg(priv)->lib->cancel_deferred_work(priv);
+       if (cfg(priv)->bt_params)
+               iwlagn_bt_cancel_deferred_work(priv);
 
        cancel_work_sync(&priv->run_time_calib_work);
        cancel_work_sync(&priv->beacon_update);
@@ -1009,8 +1009,7 @@ void iwl_cancel_deferred_work(struct iwl_priv *priv)
        del_timer_sync(&priv->ucode_trace);
 }
 
-static void iwl_init_hw_rates(struct iwl_priv *priv,
-                             struct ieee80211_rate *rates)
+static void iwl_init_hw_rates(struct ieee80211_rate *rates)
 {
        int i;
 
@@ -1044,11 +1043,16 @@ static int iwl_init_drv(struct iwl_priv *priv)
        priv->ieee_rates = NULL;
        priv->band = IEEE80211_BAND_2GHZ;
 
+       priv->plcp_delta_threshold =
+               cfg(priv)->base_params->plcp_delta_threshold;
+
        priv->iw_mode = NL80211_IFTYPE_STATION;
        priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
        priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
        priv->agg_tids_count = 0;
 
+       priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
+
        /* initialize force reset */
        priv->force_reset[IWL_RF_RESET].reset_duration =
                IWL_DELAY_NEXT_FORCE_RF_RESET;
@@ -1084,7 +1088,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
                IWL_ERR(priv, "initializing geos failed: %d\n", ret);
                goto err_free_channel_map;
        }
-       iwl_init_hw_rates(priv, priv->ieee_rates);
+       iwl_init_hw_rates(priv->ieee_rates);
 
        return 0;
 
@@ -1098,8 +1102,6 @@ static void iwl_uninit_drv(struct iwl_priv *priv)
 {
        iwl_free_geos(priv);
        iwl_free_channel_map(priv);
-       if (priv->tx_cmd_pool)
-               kmem_cache_destroy(priv->tx_cmd_pool);
        kfree(priv->scan_cmd);
        kfree(priv->beacon_cmd);
        kfree(rcu_dereference_raw(priv->noa_data));
@@ -1115,6 +1117,10 @@ static void iwl_uninit_drv(struct iwl_priv *priv)
 
 static void iwl_set_hw_params(struct iwl_priv *priv)
 {
+       if (cfg(priv)->ht_params)
+               hw_params(priv).use_rts_for_aggregation =
+                       cfg(priv)->ht_params->use_rts_for_aggregation;
+
        if (iwlagn_mod_params.amsdu_size_8K)
                hw_params(priv).rx_page_order =
                        get_order(IWL_RX_BUF_SIZE_8K);
@@ -1127,8 +1133,6 @@ static void iwl_set_hw_params(struct iwl_priv *priv)
 
        hw_params(priv).num_ampdu_queues =
                cfg(priv)->base_params->num_of_ampdu_queues;
-       hw_params(priv).shadow_reg_enable =
-               cfg(priv)->base_params->shadow_reg_enable;
        hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout;
 
        /* Device-specific setup */
@@ -1197,7 +1201,6 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
        op_mode->ops = &iwl_dvm_ops;
        priv = IWL_OP_MODE_GET_DVM(op_mode);
        priv->shrd = trans->shrd;
-       priv->shrd->priv = priv;
        priv->fw = fw;
        /* TODO: remove fw from shared data later */
        priv->shrd->fw = fw;
@@ -1404,6 +1407,56 @@ static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
        ieee80211_free_hw(priv->hw);
 }
 
+static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode)
+{
+       struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+       if (!iwl_check_for_ct_kill(priv)) {
+               IWL_ERR(priv, "Restarting adapter queue is full\n");
+               iwl_nic_error(op_mode);
+       }
+}
+
+static void iwl_nic_config(struct iwl_op_mode *op_mode)
+{
+       struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+       cfg(priv)->lib->nic_config(priv);
+}
+
+static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, u8 ac)
+{
+       struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+       set_bit(ac, &priv->transport_queue_stop);
+       ieee80211_stop_queue(priv->hw, ac);
+}
+
+static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, u8 ac)
+{
+       struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+       clear_bit(ac, &priv->transport_queue_stop);
+
+       if (!priv->passive_no_rx)
+               ieee80211_wake_queue(priv->hw, ac);
+}
+
+void iwlagn_lift_passive_no_rx(struct iwl_priv *priv)
+{
+       int ac;
+
+       if (!priv->passive_no_rx)
+               return;
+
+       for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ac++) {
+               if (!test_bit(ac, &priv->transport_queue_stop))
+                       ieee80211_wake_queue(priv->hw, ac);
+       }
+
+       priv->passive_no_rx = false;
+}
+
 const struct iwl_op_mode_ops iwl_dvm_ops = {
        .start = iwl_op_mode_dvm_start,
        .stop = iwl_op_mode_dvm_stop,
@@ -1413,6 +1466,8 @@ const struct iwl_op_mode_ops iwl_dvm_ops = {
        .hw_rf_kill = iwl_set_hw_rfkill_state,
        .free_skb = iwl_free_skb,
        .nic_error = iwl_nic_error,
+       .cmd_queue_full = iwl_cmd_queue_full,
+       .nic_config = iwl_nic_config,
 };
 
 /*****************************************************************************
@@ -1420,6 +1475,9 @@ const struct iwl_op_mode_ops iwl_dvm_ops = {
  * driver and module entry point
  *
  *****************************************************************************/
+
+struct kmem_cache *iwl_tx_cmd_pool;
+
 static int __init iwl_init(void)
 {
 
@@ -1427,20 +1485,27 @@ static int __init iwl_init(void)
        pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
        pr_info(DRV_COPYRIGHT "\n");
 
+       iwl_tx_cmd_pool = kmem_cache_create("iwl_dev_cmd",
+                                           sizeof(struct iwl_device_cmd),
+                                           sizeof(void *), 0, NULL);
+       if (!iwl_tx_cmd_pool)
+               return -ENOMEM;
+
        ret = iwlagn_rate_control_register();
        if (ret) {
                pr_err("Unable to register rate control algorithm: %d\n", ret);
-               return ret;
+               goto error_rc_register;
        }
 
        ret = iwl_pci_register_driver();
-
        if (ret)
-               goto error_register;
+               goto error_pci_register;
        return ret;
 
-error_register:
+error_pci_register:
        iwlagn_rate_control_unregister();
+error_rc_register:
+       kmem_cache_destroy(iwl_tx_cmd_pool);
        return ret;
 }
 
@@ -1448,6 +1513,7 @@ static void __exit iwl_exit(void)
 {
        iwl_pci_unregister_driver();
        iwlagn_rate_control_unregister();
+       kmem_cache_destroy(iwl_tx_cmd_pool);
 }
 
 module_exit(iwl_exit);
@@ -1461,8 +1527,6 @@ MODULE_PARM_DESC(debug, "debug output mask");
 
 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
-module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
-MODULE_PARM_DESC(queues_num, "number of hw queues.");
 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO);
 MODULE_PARM_DESC(11n_disable,
        "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");